• Brand Name: Lenovo
• Style: Headphone
• Certification: none
• Vocalism Principle: Dynamic
• Origin: CN(Origin)
• Control Button: No
• Active Noise-Cancellation: No
• Communication: True Wireless
• Volume Control: No
• Sensitivity: 108dB
• Wireless Type: bluetooth
• Is wireless: Yes
• Max Output: 3mW
• Line Length: 0m
• Support APP: No
• Function: for Video Game
• Function: Common Headphone
• Function: For Mobile Phone
• Function: Sport
• Number Of Drivers: 2
• Plug Type: none
• Package List: User Manual
• Package List: Charging case
• Package List: Charging Cable
• Impedance Range: up to 32 Ω
• Connectors: USB
• Model Number: QT81
• Earcups Type: Sealed
• Headphone Pads Material: SILICONE
• Bluetooth Version: 5.1
• Codecs: sbc
• Support Memory Card: No
• Driver Diameter: 10mm
• Resistance: 16Ω
• Waterproof: Yes
• Frequency Response Range: 20 - 20000Hz
• Total Harmonic Distortion: 2%
• With Microphone: Yes
• Features: waterproof
• Features: With Microphone
• Charging Method: Charging case
• Magnet Type: Other